From: Philipp Tomsich <philipp.tomsich@vrull.eu>
To: gcc-patches@gcc.gnu.org
Cc: kito.cheng@gmail.com, wilson@tuliptree.org,
Philipp Tomsich <philipp.tomsich@vrull.eu>
Subject: [PATCH v1 2/8] RISC-V: costs: handle BSWAP
Date: Thu, 11 Nov 2021 15:10:14 +0100 [thread overview]
Message-ID: <20211111141020.2738001-3-philipp.tomsich@vrull.eu> (raw)
In-Reply-To: <20211111141020.2738001-1-philipp.tomsich@vrull.eu>
The BSWAP operation is not handled in rtx_costs. Add it.
gcc/ChangeLog:
* config/riscv/riscv.c (rtx_costs): Add BSWAP.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
---
gcc/config/riscv/riscv.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c
index c77b0322869..8480cf09294 100644
--- a/gcc/config/riscv/riscv.c
+++ b/gcc/config/riscv/riscv.c
@@ -2131,6 +2131,14 @@ riscv_rtx_costs (rtx x, machine_mode mode, int outer_code, int opno ATTRIBUTE_UN
*total = riscv_extend_cost (XEXP (x, 0), GET_CODE (x) == ZERO_EXTEND);
return false;
+ case BSWAP:
+ if (TARGET_ZBB)
+ {
+ *total = COSTS_N_INSNS (1);
+ return true;
+ }
+ return false;
+
case FLOAT:
case UNSIGNED_FLOAT:
case FIX:
--
2.32.0
next prev parent reply other threads:[~2021-11-11 14:10 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-11 14:10 [PATCH v1 0/8] Improvements to bitmanip-1.0 (Zb[abcs]) support Philipp Tomsich
2021-11-11 14:10 ` [PATCH v1 1/8] bswap: synthesize HImode bswap from SImode or DImode Philipp Tomsich
2021-11-17 14:51 ` Kito Cheng
2021-11-19 10:20 ` Richard Biener
2021-11-19 10:21 ` Richard Biener
2021-11-11 14:10 ` Philipp Tomsich [this message]
2021-11-17 14:52 ` [PATCH v1 2/8] RISC-V: costs: handle BSWAP Kito Cheng
2021-11-11 14:10 ` [PATCH v1 3/8] RISC-V: costs: support shift-and-add in strength-reduction Philipp Tomsich
2021-11-11 14:10 ` [PATCH v1 4/8] RISC-V: bitmanip: fix constant-loading for (1ULL << 31) in DImode Philipp Tomsich
2021-11-11 14:10 ` [PATCH v1 5/8] RISC-V: bitmanip: improvements to rotate instructions Philipp Tomsich
2021-11-11 14:10 ` [PATCH v1 6/8] RISC-V: bitmanip: add splitter to use bexti for "(a & (1 << BIT_NO)) ? 0 : -1" Philipp Tomsich
2021-11-18 9:45 ` Kito Cheng
2021-11-11 14:10 ` [PATCH v1 7/8] RISC-V: bitmanip: add orc.b as an unspec Philipp Tomsich
2021-11-11 14:10 ` [PATCH v1 8/8] RISC-V: bitmanip: relax minmax to operate on GPR Philipp Tomsich
2021-11-11 16:00 ` Kito Cheng
2021-11-11 16:18 ` Philipp Tomsich
2021-11-11 16:27 ` Kito Cheng
2021-11-11 16:42 ` Kito Cheng
2021-11-11 18:33 ` Philipp Tomsich
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211111141020.2738001-3-philipp.tomsich@vrull.eu \
--to=philipp.tomsich@vrull.eu \
--cc=gcc-patches@gcc.gnu.org \
--cc=kito.cheng@gmail.com \
--cc=wilson@tuliptree.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).